Function wxd_DataViewTreeCtrl_AppendContainer 

pub unsafe extern "C" fn wxd_DataViewTreeCtrl_AppendContainer(
    self_: *mut wxd_Window_t,
    parent: *const wxd_DataViewItem_t,
    text: *const c_char,
    icon: c_int,
    expanded_icon: c_int,
) -> *const wxd_DataViewItem_t